Find value of this,if [tex]x = 9 + 4 \sqrt{5} [/tex]below is question [tex]x ^{4} + \frac{1}{x^{4} } [/tex] About the author Julia
[tex]x ^{4} + \frac{1}{x^{4} } [/tex] [tex]18 + \frac{1}{9 + 4 ^{ – 4} } [/tex] [tex] \frac{18 \times (9 + 4^{ – 4} )}{9 + 4 ^{4} } [/tex] =18 Reply
[tex]x ^{4} + \frac{1}{x^{4} } [/tex]
[tex]18 + \frac{1}{9 + 4 ^{ – 4} } [/tex]
[tex] \frac{18 \times (9 + 4^{ – 4} )}{9 + 4 ^{4} } [/tex]
=18